From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001 From: priyanka Date: Wed, 24 Jun 2015 15:03:17 +0530 Subject: initial commit / add all books --- 3507/CH9/EX9.24/Ex9_24.sce | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 3507/CH9/EX9.24/Ex9_24.sce (limited to '3507/CH9/EX9.24') diff --git a/3507/CH9/EX9.24/Ex9_24.sce b/3507/CH9/EX9.24/Ex9_24.sce new file mode 100644 index 000000000..88ca8041f --- /dev/null +++ b/3507/CH9/EX9.24/Ex9_24.sce @@ -0,0 +1,16 @@ +//chapter9 +//example9.24 +//page172 + +Ei=13 // V +Vz=10 // V +Eo=Vz +Iz_min=15d-3 // A +Il_max=85d-3 // A + +// Zener current will be min when input voltage is min + +// we see that R=(Ei-Eo)/(Iz-Il) and minimum Iz occurs when Il is maximum so +R=(Ei-Eo)/(Iz_min+Il_max) + +printf("required series resistance = %.3f ohm \n",R) -- cgit